Professors and teachers
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....State, a resident of the other Contracting State and who is present in the first-mentioned State for a period not exceeding two years for the purpose of carrying out advanced study or research or for ....
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....fic person or persons. 3. For the purposes of this article and article 21, an individual shall be deemed to be a resident of a Contracting State if he is resident in that Contracting State in the &qu....